Electbolyzing-vat



UNITED STATES PATENT OFFICE.

HENRY LOEB, or MEMPH S, TENNESSEE.

ELEGTROLYZING-VAT.

Application filed January 19, 1919.

To all to from it may concern:

it known that I, l l'nnur LOEB, a. citimen. of the United States, residing at Memphis, Shelby county, and State of 'lennessee, have invented and discovered certain new and useful improvements in Electrolyting-i ats, of which the following is a speciii cation.

ln the manufacture of chlorin by the proc ess of electrolysis a vat is employed formed of material such as glazed pottery, earthen ware, or vitreous substance, capable of resisting the passage of electric current. In the use of such vats of common construction great care must be exercised toavoid breakor cracking because of the uneven ternperatin'e between the outside and the inside, or because of too high temperature. bucn vats are comparatively errpensiw and their frequent cracking or breakage constitutes a material item. in the overhead expenses of running establishments employing; such ap; paratus in. the conduct of their busniess, such as launi'lries. cotton mills, etc., where lar 'e quantities of clilorin are niade and used for bleaching purposes. It is a common perience to have such vats break almost as soon as installed, or last only a very few days, and when once broken or cracked it has been the custom to discard them as worthless, substituting a new one at a cost of approximately 55121") for a medium sized vat. lhe expense of the vat is also added to by the was-e of the chlorin and the electric current resulting from its escape through the crack as soon the breakage occurs, and frequently amounting to considerable before it is discovered and the waste arrested.

The object of say said invention is to pro vide a means for not only insuring against the destruction. of the vat by breakage and its consequent loss, but also againstthe waste of the chlorin and the electric current should any break in the porcelain portion of the vat occur, all as will be hereinafter more fully described and claimed. n

The accompanying; drawing which is made a parthereof and on which similar reference characters indicate similar parts is a perspcctive yiew of a vat constructed and arranged in accordance with my said invention, one corner of the same being broken away to show the construction more clearly.

till said drawing); the portion inarked A represents the porcelain vat, and B and G this positive and negative electrodes, respec- Specification of Letters Patent.

Serial No. 270,5 l1.

tivcly, all of which are of the construction and type commonly employed in the practics of the process of making chlorin which is well. understood and needs no elaborate description. r

The prune/lain vat a is inclosed in a wooden case 10, made of heavy boards and securely bound together by straps 16, which may be connected at their corners by engaging bolts and nuts 11, or in any other appropriate manner. Said case 1.0 is larger than the vat n; so that when said vat is centered therein there will be a space of a few inches on allisides between the vat and the case, including the bottom thereof. This space is filled with aninsulating bituminous composition or material preferably asphalt,

which. l have found to be very serviceable for the purpose, This material covers the outside surface of the rat A on all sides and bottom,thus forming a structure in which the porcelain part of the vat is securely packed in a material. that is capable of resisting andretaining the heat and also resistinn; the passage of the electric current, [nus insulating the vat from any waste of the current and surrounding it with material of a character and consistency that will promptly close any crack that may occur, should one occur during operation.

A discharge spout l8 and terminal connectors 14 and 15 are indicated, all of usual form and requiring; no special description.

In the drawing I have illustrated the vat It as having; a crack 12 in the corner thereof, the same being exposed by the breaking away of the other portions of the structure. This is nerely for purposes of illustration and I desire it understood that the invention is for use with unbroken vats a. well as for use with those that have been cracked or broken. In actual practice I have taken rats that have been broken and discarded,

and by fitting the parts together and packing thorn in a wooden case, as 10, in the thick asphalt packing material 11, completely stored such vats to a condition where they have proven just as serviceable in use as when they were new, thus recovering from the sorrow heap, at small expense, these valuable vessels and putting them to their original use, thereby saving a considerable item in the overhead expenses of the plant. The invention, therefore, has a twofold purpose: that of protecting perfect porcelain vats against breakage and that of restoring Patented Ma 22, 1921.

Ill)

broken vats to a condition of perfect utility; as Well as the further purpose of economy in operation bv saving heat and electric eur- 1 other materials rent.

7 In practice I have found that the porcelain vats, as heretofore used, will crack under a temperature of from 115 to 125 F. A vat constructed and protected in accordance With my said invention can be safely heated to beyond any temperature needed, Asphalt will liquefy at about 300 F L and water-vaporize at about212 in an open vessel. These vats have been tested to a temperature that will boil water, without cracking them, while the vats as formerly used could not withstand a temperature nearly approaching the boiling point of Water.-v

While I have used, wood and asphalt for the case and packing, respectively, I desire it understood that in using these terms herein, I intend to include in their meaning any found suitable for these parts.

Having thus fully described my said invention, what I claim as new and desire to secure by Letters Patent is:

1. A vat for use in making chlorin by electrolysis comprising a vessel of glazed pottery, a casing of wood surrounding said vessel, and a packing of asphalt between said vessel and said casing, substantially as set forth.

2. A vat for making chlorin by electrolysis comprising a vessel of glazed pottery, a reinforced casing of Wood, means for bind ing said casing together, a, packing of asphalt interposed between said vessel and said casing, and a discharge spout running from the interior of said vessel through said packing and casing to the outside, substantially as set forth.

In witness whereof, I have hereunto set my hand and seal at Memphis, Tennessee, this 3rd day of January, A. D. nineteen hundred and nineteen.

HENRY LOEB. Ii. sf] IVitnesses ALBERT KIME, JOHN IV. FARLEY. 

